Condenser fan speed control

Tiny
GORDON T RAMSAY
  • MEMBER
  • 2005 MERCEDES BENZ E320
  • 3.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 256,000 MILES
Fan runs at high speed continually. Always seemed to run at excessive speed when first started in hot weather, but now runs constantly fast.
Wednesday, August 10th, 2016 AT 6:37 AM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,924 POSTS
Hey Gordon,

This is a common problem with these cars, the controller goes out and causes the fan to run continuously.

Here is a wiring diagram which shows the fan and controller are an integrated all in one unit.

Please let me know what you find

Best, Ken
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Friday, August 12th, 2016 AT 11:15 AM
Tiny
GORDON T RAMSAY
  • MEMBER
  • 3 POSTS
In that case I will listen to the noise. Rather than spend 500. Plus on a new fan assembly. Thanks for the prompt reply.
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Friday, August 12th, 2016 AT 6:13 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,924 POSTS
Yep sometimes that is easier, please visit again when you have car troubles.

Best, Ken
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Saturday, August 13th, 2016 AT 4:51 PM
Tiny
GORDON T RAMSAY
  • MEMBER
  • 3 POSTS
Appreciate your help. Thanks
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Saturday, August 13th, 2016 AT 6:03 PM

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